<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>行与块</title>
	<style>
		p{
			background: red;
			height: 50px;
			display: none;
		}
		span{
			background: red;
			height: 200px;
			width: 300px;
			/*display: block;*/
		}
		img{
			width: 200px;
		}
	</style>
</head>
<body>
	<p>我是一个p</p>
	<span>我是span</span>
	<p>我是一个p</p>
	<p>我是一个p</p>
	<p>我是一个p</p>
	<div class="box">学并思</div>
	<span>我是span</span>
	<span>我是span</span>
	<span>我是span</span>
	<span>我是span</span>
	<a href="">学并思</a>
	<a href="">学并思</a>
	<a href="">学并思</a>
	<a href="">学并思</a>
	<a href="">学并思</a>
	<img src="https://www.baidu.com/img/bd_logo1.png?where=super" alt="">
	<img src="https://www.baidu.com/img/bd_logo1.png?where=super" alt="">
	<img src="https://www.baidu.com/img/bd_logo1.png?where=super" alt="">
	<input type="text">
</body>
</html>